U.S. Sens. Josh Hawley and Roy Blunt want the U.S. Army Corps of Engineers to stop focusing on protecting wildlife in the Missouri River and instead focus on flood control and navigation, a move that environmentalists are calling misguided.

In 2004, the Corps of Engineers changed its management strategy for the Missouri River to protect two endangered species of birds and one fish, the pallid sturgeon. However, landowners near the river have alleged that prioritizing wildlife over flood protection has caused them extensive property damage from major floods.

A bill filed by the two Republican senators ignores the important role wildlife restoration can serve in reducing floods along the Missouri River, said Washington University geologist Bob Criss.

“The birds, the sandbars, the islands and the wide river are what’s protecting people,” Criss said.

Many farmers along the Missouri River also experienced flooded homes and ruined crops due to record-breaking floods this spring. There needs to be changes to the way the Corps manages the river, but Hawley’s legislation may not exactly be the right approach, said Richard Oswald, president of the Missouri Farmers Union.

“I don’t know if I want to see that bill passed. I appreciate the conversation it’s going to spark,” said Oswald, a farmer from Langdon, Missouri. “I don’t know if making levees taller are going to help. Making the levees taller will make deeper floods.”

The Army Corps of Engineers has long struggled to balance the need to accommodate the navigation industry, restore wildlife and natural areas, and protect communities from floods. Treating each of these needs as if they’re competing with each other has been problematic, said Maisah Khan, water policy coordinator for the Missouri Coalition for the Environment.

“Unfortunately I do think that the narrative we’re using in this situation to say we are putting people in danger because we’ve managed the system for wildlife, that misses an opportunity to consider co-benefits of managing with natural infrastructure that not only protects the communities, not only creates room for the river, but also decreases the [flood] risk,” Khan said.

Khan wants to see the Corps put more effort into restoring areas that the Missouri River naturally flowed into in times of high water.